timeline : fix jumpToBottom for not live timeline.

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/TimelineView.kt

@@ -30,9 +30,11 @@ import androidx.compose.runtime.CompositionLocalProvider
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.derivedStateOf
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.rememberUpdatedState
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.rotate
@@ -206,6 +208,7 @@ private fun BoxScope.TimelineScrollHelper(
             lazyListState.firstVisibleItemIndex < 3 && isLive
         }
     }
+    var jumpToLiveHandled by remember { mutableStateOf(true) }
 
     fun scrollToBottom() {
         coroutineScope.launch {
@@ -221,10 +224,18 @@ private fun BoxScope.TimelineScrollHelper(
         if (isLive) {
             scrollToBottom()
         } else {
+            jumpToLiveHandled = false
             onJumpToLive()
         }
     }
 
+    LaunchedEffect(jumpToLiveHandled, isLive) {
+        if (!jumpToLiveHandled && isLive) {
+            lazyListState.scrollToItem(0)
+            jumpToLiveHandled = true
+        }
+    }
+
     val latestOnFocusEventRender by rememberUpdatedState(onFocusEventRender)
     LaunchedEffect(focusRequestState) {
         if (focusRequestState is FocusRequestState.Success && focusRequestState.isIndexed) {